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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
08/05/2001 |
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Data da última atualização: |
21/11/2018 |
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Autoria: |
MUNIZ, J. A.; ITO, S. C. S.; FERREIRA, D. F.; VEIGA, R. D. |
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Afiliação: |
Joel Augusto Muniz, Universidade Federal de Lavras - UFLA/Departamento de Ciências Exatas - DEX; Silvio César Sartori Ito, Universidade Federal de Lavras - UFLA/Departamento de Ciências Exatas - DEX; Daniel Furtado Ferreira, Universidade Federal de Lavras - UFLA/Departamento de Ciências Exatas - DEX; Ruben Delly Veiga, Universidade Federal de Lavras - UFLA/ Departamento de Ciências Exatas - DEX. |
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Título: |
Teste de hipótese sobre o coeficiente da coancestria de populações haplóides. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 36, n. 1, p. 15-25, jan. 2001 |
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Idioma: |
Português |
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Notas: |
Título em inglês: Test of hypothesis on the coefficient of coancestry in haploid population. |
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Conteúdo: |
Neste trabalho foram estudadas as distribuicoes dos quadrados medios na analise de variância com as frequencias alelicas em amostras de individuos extraídas em populações haploides, procurando avaliar o uso do teste F para testar a hipotese de nulidade do coeficiente de coancestria. Foi demonstrado que as expressoes da soma de quadrados entre populacoes e da soma de quadrados entre individuos dentro de populacoes divididas pelas respectivas esperancas de quadrados medios possuem distribuicoes de c2 aproximadas, indicando que o quociente entre os quadrados medios na analise de variancia tem distribuicao F aproximada. Um estudo de simulacao foi realizado comparando-se os valores experimentais simulados com os da distribuicao teorica de F, procurando-se avaliar a validade das aproximacoes sugeridas. Os resultados mostraram que o teste F pode ser usado para testar a hipotese de nulidade do coeficiente de coancestria quando se trabalha com pelo menos cinco populacoes apresentando frequencia alelica media entre 0,3 e 0,7 utilizando-se no minimo 50 individuos. |
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Palavras-Chave: |
Ascendência; Genética de população; Haploidia; Statistical methods. |
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Thesagro: |
Análise Estatística. |
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Thesaurus Nal: |
Ancestry; Haploidy; Population genetics; Statistical analysis. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/18905/1/pab99_198.pdf
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Marc: |
LEADER 01954naa a2200277 a 4500
001 1103634
005 2018-11-21
008 2001 bl uuuu u00u1 u #d
100 1 $aMUNIZ, J. A.
245 $aTeste de hipótese sobre o coeficiente da coancestria de populações haplóides.
260 $c2001
500 $aTítulo em inglês: Test of hypothesis on the coefficient of coancestry in haploid population.
520 $aNeste trabalho foram estudadas as distribuicoes dos quadrados medios na analise de variância com as frequencias alelicas em amostras de individuos extraídas em populações haploides, procurando avaliar o uso do teste F para testar a hipotese de nulidade do coeficiente de coancestria. Foi demonstrado que as expressoes da soma de quadrados entre populacoes e da soma de quadrados entre individuos dentro de populacoes divididas pelas respectivas esperancas de quadrados medios possuem distribuicoes de c2 aproximadas, indicando que o quociente entre os quadrados medios na analise de variancia tem distribuicao F aproximada. Um estudo de simulacao foi realizado comparando-se os valores experimentais simulados com os da distribuicao teorica de F, procurando-se avaliar a validade das aproximacoes sugeridas. Os resultados mostraram que o teste F pode ser usado para testar a hipotese de nulidade do coeficiente de coancestria quando se trabalha com pelo menos cinco populacoes apresentando frequencia alelica media entre 0,3 e 0,7 utilizando-se no minimo 50 individuos.
650 $aAncestry
650 $aHaploidy
650 $aPopulation genetics
650 $aStatistical analysis
650 $aAnálise Estatística
653 $aAscendência
653 $aGenética de população
653 $aHaploidia
653 $aStatistical methods
700 1 $aITO, S. C. S.
700 1 $aFERREIRA, D. F.
700 1 $aVEIGA, R. D.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 36, n. 1, p. 15-25, jan. 2001
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
17/05/2018 |
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Data da última atualização: |
29/11/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 3 |
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Autoria: |
BRAZ, A. J. B. P.; FERREIRA, C. J. B.; SILVEIRA, P. M. da; SIMON, G. A.; ASSIS, R. L. de; BRAZ, G. B. P.; MEDEIROS, R. V. |
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Afiliação: |
ANTONIO JOAQUIM BRAGA PEREIRA BRAZ, UNIVERSIDADE DE RIO VERDE, Rio Verde-GO; CAMILA JORGE BERNABÉ FERREIRA, UNIVERSIDADE ESTADUAL DE MARINGÁ; PEDRO MARQUES DA SILVEIRA, CNPAF; GUSTAVO ANDRE SIMON, UNIVERSIDADE DE RIO VERDE, Rio Verde-GO; RENATO LARA DE ASSIS, INSTITUTO FEDERAL GOIANO, Iporá-GO; GUILHERME BRAGA PEREIRA BRAZ, UNIVERSIDADE DE RIO VERDE, Rio Verde-GO; RENATO VIEIRA MEDEIROS, mestrando UNIVERSIDADE DE RIO VERDE, Rio Verde-GO. |
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Título: |
Nitrogen fertilization in super-early cycle common bean using new sources of urea. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Científica, v. 46, n. 2, p. 180-186, 2018. |
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ISSN: |
1984-5529 |
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DOI: |
10.15361/1984-5529.2018v46n2p180-186 |
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Idioma: |
Inglês |
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Conteúdo: |
The efficiency of new fertilizers as a nitrogen source in super-early cycle common bean cultivars still needs to be better known. The objective was to quantify the effect of new sources and time of application of nitrogen on yield and yield components of a super-early cycle bean cultivar. The experiment was conducted in the city of Rio Verde, state of Goias, Brazil, using the experimental design of randomized blocks, in a 3x3+1 factorial scheme, with four replications. The first factor was constituted by nitrogen (N) sources: traditional urea, zeolite-associated urea, and urea with urease inhibitor, using the dose of 80 kg ha-1 N. The second factor was application stages: V2, V3, and V4, that is, when 50% of the plants had the first pair of unifoliolate leaves, the first trifoliolate leaf, and the third trifoliolate leaf fully expanded, respectively. Moreover, an additional treatment was used, without N application (control). The cultivar used was BRS FC104, of super-early cycle, from 60 to 65 days. The following were measured: relative chlorophyll index (RCI), plant height, first pod insertion height, number of pods per plant, number of grains per pod, mass of 100 grains and yield. There was no significant difference between sources and application stages regarding the number of pods per plant, number of grains per pod, plant height and first pod insertion height. The highest yields were obtained with the use of zeolite-associated urea, and the best application stage was V4. The use of urea with urease inhibitor did not provide an increase in grain yield compared to the control treatment. MenosThe efficiency of new fertilizers as a nitrogen source in super-early cycle common bean cultivars still needs to be better known. The objective was to quantify the effect of new sources and time of application of nitrogen on yield and yield components of a super-early cycle bean cultivar. The experiment was conducted in the city of Rio Verde, state of Goias, Brazil, using the experimental design of randomized blocks, in a 3x3+1 factorial scheme, with four replications. The first factor was constituted by nitrogen (N) sources: traditional urea, zeolite-associated urea, and urea with urease inhibitor, using the dose of 80 kg ha-1 N. The second factor was application stages: V2, V3, and V4, that is, when 50% of the plants had the first pair of unifoliolate leaves, the first trifoliolate leaf, and the third trifoliolate leaf fully expanded, respectively. Moreover, an additional treatment was used, without N application (control). The cultivar used was BRS FC104, of super-early cycle, from 60 to 65 days. The following were measured: relative chlorophyll index (RCI), plant height, first pod insertion height, number of pods per plant, number of grains per pod, mass of 100 grains and yield. There was no significant difference between sources and application stages regarding the number of pods per plant, number of grains per pod, plant height and first pod insertion height. The highest yields were obtained with the use of zeolite-associated urea, and the best application stage was V4... Mostrar Tudo |
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Thesagro: |
Adubação; Feijão; Fertilizante Nitrogenado; Uréase. |
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Thesaurus NAL: |
Beans; Fertilizer application; Nitrogen fertilizers; Urease inhibitors; Zeolites. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/177134/1/CNPAF-2018-cientifica.pdf
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Marc: |
LEADER 02543naa a2200325 a 4500
001 2091565
005 2018-11-29
008 2018 bl uuuu u00u1 u #d
022 $a1984-5529
024 7 $a10.15361/1984-5529.2018v46n2p180-186$2DOI
100 1 $aBRAZ, A. J. B. P.
245 $aNitrogen fertilization in super-early cycle common bean using new sources of urea.$h[electronic resource]
260 $c2018
520 $aThe efficiency of new fertilizers as a nitrogen source in super-early cycle common bean cultivars still needs to be better known. The objective was to quantify the effect of new sources and time of application of nitrogen on yield and yield components of a super-early cycle bean cultivar. The experiment was conducted in the city of Rio Verde, state of Goias, Brazil, using the experimental design of randomized blocks, in a 3x3+1 factorial scheme, with four replications. The first factor was constituted by nitrogen (N) sources: traditional urea, zeolite-associated urea, and urea with urease inhibitor, using the dose of 80 kg ha-1 N. The second factor was application stages: V2, V3, and V4, that is, when 50% of the plants had the first pair of unifoliolate leaves, the first trifoliolate leaf, and the third trifoliolate leaf fully expanded, respectively. Moreover, an additional treatment was used, without N application (control). The cultivar used was BRS FC104, of super-early cycle, from 60 to 65 days. The following were measured: relative chlorophyll index (RCI), plant height, first pod insertion height, number of pods per plant, number of grains per pod, mass of 100 grains and yield. There was no significant difference between sources and application stages regarding the number of pods per plant, number of grains per pod, plant height and first pod insertion height. The highest yields were obtained with the use of zeolite-associated urea, and the best application stage was V4. The use of urea with urease inhibitor did not provide an increase in grain yield compared to the control treatment.
650 $aBeans
650 $aFertilizer application
650 $aNitrogen fertilizers
650 $aUrease inhibitors
650 $aZeolites
650 $aAdubação
650 $aFeijão
650 $aFertilizante Nitrogenado
650 $aUréase
700 1 $aFERREIRA, C. J. B.
700 1 $aSILVEIRA, P. M. da
700 1 $aSIMON, G. A.
700 1 $aASSIS, R. L. de
700 1 $aBRAZ, G. B. P.
700 1 $aMEDEIROS, R. V.
773 $tCientífica$gv. 46, n. 2, p. 180-186, 2018.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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